Kavu Throwshirt Flex Jacket Balsa Summit The KAVU Throwshirt Flex Jacket in Balsa Summit is a modern update to a classic design first introduced in the early 1990s. FEATURES Casual fit Half zip mock neck pullover jacket Interior self-fabric neck tape Front chest pocket with patterned webbing detail and Velcro closure Hand pockets Gusseted underarms Velcro adjustable sleeve cuffs Back drop tailed hem with custom draw cord Fabric: 9oz 97% cotton 3% lycra - 12 wale stretch corduroy & 8oz 98% cotton 2% spandex fine stretch twill.